:root {
    --bg: #f8fafc; --card: #ffffff; --text: #0f172a; --muted: #64748b;
    --primary: #14b8a6; /* Turkuaz Ana Renk */
    --primary-dark: #0f766e; /* Koyu Turkuaz */
    --accent: #2dd4bf; /* Açık Turkuaz / Vurgu */
    --ok: #10b981; --warn: #f59e0b; --bad: #ef4444; --line: #e2e8f0;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: 'Poppins', sans-serif; background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; }

/* Modern Header */
header { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: #fff; padding: 24px 30px; display: flex; justify-content: space-between; align-items: center; border-bottom-left-radius: 24px; border-bottom-right-radius: 24px; box-shadow: 0 10px 30px rgba(20, 184, 166, 0.15); margin-bottom: 24px; }
header h1 { margin: 0; font-size: 24px; font-weight: 800; display: flex; align-items: center; gap: 10px; letter-spacing: -0.5px; }
header p { margin: 6px 0 0; opacity: 0.9; font-weight: 300; font-size: 14px; }

.wrap { max-width: 1260px; margin: auto; padding: 0 20px 40px; }
.hidden { display: none !important; }

/* Şık Buton Taps Tasarımı */
.tabs-container { text-align: center; margin-bottom: 24px; }
.tabs { display: inline-flex; gap: 4px; background: #fff; padding: 8px; border-radius: 100px; box-shadow: 0 4px 15px rgba(0,0,0,0.03); flex-wrap: wrap; justify-content: center; }
.tab { border: 0; border-radius: 100px; background: transparent; color: var(--muted); padding: 12px 24px; cursor: pointer; font-weight: 600; font-family: inherit; font-size: 14px; transition: all 0.3s ease; display: inline-flex; align-items: center; gap: 8px; }
.tab:hover { color: var(--primary); }
.tab.active { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(20, 184, 166, 0.3); }

/* Card Tasarımları */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid #f1f5f9; border-radius: 24px; padding: 24px; box-shadow: 0 10px 30px rgba(0,0,0,0.03); margin-bottom: 16px; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.card h3 { margin-top: 0; display: flex; align-items: center; gap: 8px; font-size: 18px; color: #1e293b; }
.kpi b { font-size: 32px; font-weight: 800; color: var(--text); display: block; margin-top: 8px; }
.muted { color: var(--muted); font-size: 13px; }
.kpi-icon { width: 48px; height: 48px; border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 12px; }

/* MODERN FORM ELEMANLARI */
.toolbar { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
select, input[type="text"], input[type="email"], input[type="password"], input[type="date"], input[type="number"], textarea { 
    border: 1px solid #cbd5e1; 
    border-radius: 12px; 
    padding: 12px 16px; 
    background: #ffffff; 
    font: inherit; 
    font-size: 14px; 
    color: var(--text); 
    transition: all 0.3s ease; 
    outline: none; 
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}
select:focus, input[type="text"]:focus, input[type="email"]:focus, input[type="password"]:focus, input[type="date"]:focus, input[type="number"]:focus, textarea:focus { 
    border-color: var(--accent); 
    box-shadow: 0 0 0 4px rgba(45, 212, 191, 0.15); 
}
textarea { width: 100%; box-sizing: border-box; min-height: 250px; resize: both; line-height: 1.6; }
button { border: 0; border-radius: 12px; background: var(--primary); color: #fff; padding: 12px 20px; cursor: pointer; font-weight: 600; font-family: inherit; transition: 0.3s; display: inline-flex; align-items: center; gap: 8px; justify-content: center; }
button:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 10px rgba(20, 184, 166, 0.2); }
button.secondary { background: #f1f5f9; color: #334155; }
button.secondary:hover { background: #e2e8f0; }
button.danger { background: #fef2f2; color: var(--bad); }
button.danger:hover { background: #fee2e2; }
button.header-btn { background: rgba(255,255,255,0.15); color: #fff; border: 1px solid rgba(255,255,255,0.2); backdrop-filter: blur(4px); }
button.header-btn:hover { background: rgba(255,255,255,0.25); }

/* Tablolar ve Veriler */
table { width: 100%; border-collapse: separate; border-spacing: 0; }
th, td { padding: 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { text-align: left; background: #f8fafc; font-size: 13px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
th:first-child { border-top-left-radius: 12px; border-bottom-left-radius: 12px; }
th:last-child { border-top-right-radius: 12px; border-bottom-right-radius: 12px; }

.pill { display: inline-block; padding: 6px 12px; border-radius: 999px; background: #ccfbf1; color: #115e59; font-size: 12px; font-weight: 600; }
.bar { height: 8px; background: #f1f5f9; border-radius: 99px; overflow: hidden; margin: 8px 0; }
.bar span { display: block; height: 100%; background: linear-gradient(90deg, #5eead4, #14b8a6); border-radius: 99px; transition: width 0.5s ease; }
.bar.bad span { background: linear-gradient(90deg, #f87171, #dc2626); }
.bar.good span { background: linear-gradient(90deg, #34d399, #10b981); }

.topic-row { display: grid; grid-template-columns: 32px 1.5fr 2fr; gap: 12px; align-items: center; padding: 12px; border-radius: 12px; border: 1px solid transparent; transition: 0.2s; }
.topic-row:hover { background: #f8fafc; border-color: var(--line); }
.sources { display: flex; flex-wrap: wrap; gap: 8px; }
.source { font-size: 12px; border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; background: #fff; cursor: pointer; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; transition: 0.2s; }
.source.done { background: #ecfdf5; border-color: #34d399; color: #065f46; }
.source.planned { background: #fef2f2; border-color: #f87171; color: #991b1b; }
.source.half { background: #fffbeb; border-color: #f59e0b; color: #b45309; } 
.section-title { margin: 24px 0 12px; font-weight: 700; color: var(--primary-dark); padding-bottom: 8px; border-bottom: 2px solid #ccfbf1; font-size: 16px; display: flex; align-items: center; gap: 8px; }

.two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.three { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.list { display: flex; flex-direction: column; gap: 8px; }

/* Hata/Boş Listesi Tasarımı ve Hover Efektli Buton */
.rank { display: grid; grid-template-columns: 30px 1fr 45px 45px 36px; gap: 10px; align-items: center; padding: 12px 14px; background: #f8fafc; border-radius: 12px; border: 1px solid transparent; transition: 0.2s; }
.rank:hover { border-color: #cbd5e1; box-shadow: 0 4px 10px rgba(0,0,0,0.03); background: #ffffff; }
.rank b { font-size: 18px; color: var(--primary); }
.action-btn-small { width: 36px; height: 36px; border-radius: 10px; border: none; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: 0.2s; font-size: 14px; padding: 0; }
.action-btn-small.add { background: #f0fdfa; color: var(--primary); }
.action-btn-small.add:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: 0 4px 8px rgba(20, 184, 166, 0.2); }
.action-btn-small.done { background: #ecfdf5; color: #10b981; }
.action-btn-small.done:hover { background: #fee2e2; color: #ef4444; }
.action-btn-small.done:hover i::before { content: "\f00d"; } 

.empty { padding: 40px 24px; text-align: center; color: var(--muted); border: 2px dashed #cbd5e1; border-radius: 16px; background: #f8fafc; font-size: 15px; }

/* Giriş ve Süre Sonu Ekranı Tasarımı */
.full-screen { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 100vh; background: linear-gradient(135deg, #f0fdfa, #ccfbf1); }
.login-box { background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(10px); padding: 40px; border-radius: 24px; box-shadow: 0 20px 50px rgba(0,0,0,0.05); width: 100%; max-width: 420px; text-align: center; border: 1px solid rgba(255,255,255,1); }

.login-box input[type="text"], 
.login-box input[type="email"], 
.login-box input[type="password"] { 
    display: block !important;
    width: 100% !important; 
    margin-bottom: 20px !important; 
    padding: 14px 16px !important; 
    font-size: 15px !important; 
    box-sizing: border-box !important;
}
.remember-container {
    display: flex !important;
    align-items: center !important;
    justify-content: flex-start !important;
    margin-top: -4px !important;
    margin-bottom: 24px !important;
    margin-left: 4px !important;
}

.login-box button { width: 100%; padding: 14px; font-size: 16px; margin-top: 8px; }

/* Öğrenci Seçici */
#student-selector { max-width: 900px; margin: 60px auto; padding: 0 20px; }
#studentListDiv.list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; flex-direction: row; }
.student-card { display: flex; flex-direction: column; align-items: center; padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: 20px; box-shadow: 0 10px 20px rgba(0,0,0,0.02); transition: transform 0.2s; position: relative; }
.student-card:hover { transform: translateY(-5px); box-shadow: 0 15px 30px rgba(0,0,0,0.06); border-color: #99f6e4; }
.student-avatar { width: 64px; height: 64px; background: #f0fdfa; color: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 28px; margin-bottom: 12px; }
.student-actions { display: flex; gap: 8px; width: 100%; margin-top: 16px; }

/* Dropdown */
.dropdown-content { display: none; position: absolute; z-index: 10; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 8px; box-shadow: 0 10px 25px rgba(0,0,0,0.1); width: max-content; top: 100%; left: 0; margin-top: 8px; }
.dropdown.active .dropdown-content { display: block; animation: fadeIn 0.2s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }
.drop-item { padding: 10px 16px; font-size: 13px; cursor: pointer; border-radius: 8px; font-weight: 600; transition: 0.2s; display: flex; align-items: center; gap: 8px; }
.drop-item:hover { background: #f8fafc; }

/* Günlük Planlama (Sürükle Bırak) */
.draggable-item { cursor: grab; padding: 12px; background: #fff; border: 1px solid var(--line); border-radius: 10px; font-size: 12px; margin-bottom: 8px; box-shadow: 0 2px 5px rgba(0,0,0,0.02); display: flex; gap: 8px; align-items: flex-start; }
.draggable-item:active { cursor: grabbing; opacity: 0.8; transform: scale(0.98); }
.daily-grid { display: flex; flex-direction: row; flex-wrap: nowrap; gap: 12px; margin-top: 20px; overflow-x: auto; padding-bottom: 8px; }
.day-col { flex: 1 0 140px; min-width: 140px; background: #f8fafc; border: 1px solid var(--line); border-radius: 16px; display: flex; flex-direction: column; min-height: 350px; overflow: hidden; }
.day-header { text-align: center; font-weight: 700; padding: 12px; background: #f1f5f9; border-bottom: 1px solid var(--line); font-size: 14px; color: var(--primary-dark); }
.drop-zone { flex: 1; padding: 12px; overflow-y: auto; min-height: 100px; display: flex; flex-direction: column; gap: 4px; }
.drop-zone.dragover { background: #f0fdfa; }

/* Görev Havuzu Grid & Scroll Ayarları */
.pool-grid { display: grid; grid-template-columns: 1fr 2fr 1fr; gap: 16px; }
.topics-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; align-items: start; align-content: start; }
.pool-items { max-height: 300px; overflow-y: auto; padding-right: 8px; }
.pool-items::-webkit-scrollbar { width: 6px; }
.pool-items::-webkit-scrollbar-track { background: #f1f5f9; border-radius: 10px; }
.pool-items::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }

.plan-toggle { display: flex; justify-content: center; gap: 24px; margin-bottom: 24px; background: #fff; padding: 16px; border-radius: 16px; box-shadow: 0 4px 15px rgba(0,0,0,0.03); }
.plan-toggle label { font-weight: 600; cursor: pointer; display: flex; align-items: center; gap: 8px; font-size: 15px; color: var(--text); }
.plan-toggle input[type="radio"] { width: 18px; height: 18px; accent-color: var(--primary); }

.chart-container { position: relative; height: 220px; width: 100%; margin-bottom: 16px; border-bottom: 1px dashed var(--line); padding-bottom: 12px; }

/* Test Sonuç Kartları */
.test-result-card { background: linear-gradient(135deg, #ffffff, #f8fafc); border: 1px solid #e2e8f0; border-radius: 16px; padding: 24px; }
.career-item { background: #fff; padding: 14px; border-radius: 12px; border: 1px solid var(--line); margin-bottom: 10px; display: flex; flex-direction: column; gap: 6px;}

/* Timeline Stilleri (Öğrenci Notları ve Raporlar İçin) */
.timeline { border-left: 2px solid #e2e8f0; margin-left: 16px; padding-left: 20px; position: relative; }
.timeline-item { position: relative; margin-bottom: 24px; }
.timeline-item::before { content: ''; position: absolute; left: -27px; top: 0; width: 12px; height: 12px; background: #14b8a6; border-radius: 50%; border: 2px solid #fff; box-shadow: 0 0 0 2px #ccfbf1; }
.timeline-date { font-size: 11px; font-weight: 700; color: #64748b; margin-bottom: 4px; display: block; }
.timeline-card { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px; padding: 12px 16px; }
.timeline-stats { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; font-size: 13px; font-weight: 600; color: #1e293b; }
.timeline-note { font-size: 13px; color: #475569; line-height: 1.5; margin: 0; }

@media(max-width:900px){
    .grid, .two, .three { grid-template-columns: 1fr; }
    .topic-row { grid-template-columns: 28px 1fr; }
    .topic-row > div:nth-child(3) { grid-column: 2; margin-top: 4px; }
    .pool-grid { grid-template-columns: 1fr; }
    .topics-grid { grid-template-columns: 1fr; }
    header { flex-direction: column; gap: 16px; text-align: center; }
    .rank { grid-template-columns: 24px 1fr 36px; }
    .rank > div:nth-child(3), .rank > div:nth-child(4) { display: none; } 
}

/* ========================================================
   TEK SAYFA YAZDIRMA (PDF) SIKIŞTIRMA AYARLARI 
   ======================================================== */
@media print {
    @page { margin: 0.5cm; }
    html, body { height: 99%; overflow: hidden; background: #fff !important; color: #000 !important; font-size: 9pt !important; }
    header, .tabs-container, .no-print, #student-selector, .plan-toggle, #login-screen, #expired-screen { display: none !important; }
    .wrap { padding: 0 !important; max-width: 100% !important; margin: 0 !important; height: 100%; display: flex; flex-direction: column; }
    #app-main { display: flex !important; flex-direction: column; height: 100%; }
    .card { border: none !important; box-shadow: none !important; padding: 0 !important; margin: 0 !important; flex: 1; display: flex; flex-direction: column; }
    
    #plan-export-area { height: 100% !important; max-height: 98vh; display: flex; flex-direction: column; padding: 10px !important; box-sizing: border-box; overflow: hidden; border: none !important; box-shadow: none !important; }
    .print-header { margin-bottom: 40px !important; padding-bottom: 15px !important; text-align: center; flex-shrink: 0; display: block !important; border-bottom: 1px dashed #cbd5e1 !important; }
    .print-header h2 { font-size: 16pt !important; margin-bottom: 2px !important; color:#0f172a !important; }
    .print-header p { font-size: 12pt !important; margin-top: 0 !important; color:#1e293b !important; font-weight: 600; }

    .daily-grid { flex: 1; display: flex !important; flex-direction: row !important; flex-wrap: nowrap !important; width: 100%; gap: 4px !important; margin-top: 0 !important; min-height: 0; overflow: hidden !important; }
    .day-col { flex: 1; min-width: 0 !important; display: flex; flex-direction: column; min-height: 0; border: 1px solid #000 !important; background: #fff !important; border-radius: 4px !important; }
    .day-header { font-size: 9pt !important; padding: 2px !important; background: #f1f5f9 !important; border-bottom: 1px solid #000 !important; flex-shrink: 0; text-align: center; font-weight: bold; }
    .drop-zone { flex: 1; overflow: hidden; padding: 2px !important; display: flex; flex-direction: column; gap: 2px !important; }
    .draggable-item { padding: 2px 4px !important; font-size: 7.5pt !important; border-radius: 2px !important; margin-bottom: 0 !important; line-height: 1.1 !important; border: 1px solid #94a3b8 !important; box-shadow: none !important; break-inside: avoid; display: block !important; }
    .draggable-item b { font-size: 8pt !important; display: inline-block; margin-bottom: 1px;}
    .draggable-item span.muted { font-size: 7pt !important; display: block; margin-top:1px; }
    .draggable-item i { display: none !important; } 

    .weekly-print-section { flex: 1; display: flex; flex-direction: column; gap: 8px !important; overflow: hidden; min-height: 0; }
    .print-section-block { display: flex; flex-direction: column; min-height: 0; margin-bottom: 0 !important; }
    .print-section-block h4 { font-size: 11pt !important; margin: 0 0 2px !important; padding-bottom: 2px !important; border-bottom: 1px solid #ccc !important; flex-shrink: 0; }
    .weekly-grid-container { display: grid !important; grid-template-columns: repeat(4, 1fr) !important; gap: 4px !important; overflow: hidden; }
    .weekly-grid-container > div { padding: 4px !important; font-size: 8pt !important; margin-bottom: 0 !important; border: 1px solid #ccc !important; border-left-width: 3px !important; }
    .weekly-grid-container > div div { font-size: 7pt !important; margin-bottom: 1px !important; }
    .print-section-block ul { margin: 0 !important; padding-left: 15px !important; }
    .print-section-block li { font-size: 9pt !important; margin-bottom: 1px !important; }

    .print-only { display: block !important; }
    
    /* İlgili raporu izole yazdırma */
    body.print-career .attention-report { display: none !important; }
    body.print-attention .career-report { display: none !important; }
    
    * { -webkit-print-color-adjust: exact !important; print-color-adjust: exact !important; }
}

/* Iframe Modal Tasarımı */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(15, 23, 42, 0.7); display: flex; align-items: center; justify-content: center; z-index: 9999; backdrop-filter: blur(4px); }
.modal-content { background: #f8fafc; width: 95%; max-width: 850px; height: 90vh; border-radius: 24px; overflow: hidden; position: relative; box-shadow: 0 25px 50px rgba(0,0,0,0.25); display: flex; flex-direction: column; }
.modal-header { padding: 20px 24px; background: #ffffff; border-bottom: 1px solid #e2e8f0; display: flex; justify-content: center; align-items: center; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05); z-index: 10; position: relative;}
.modal-close-btn { position: absolute; right: 24px; background: #f1f5f9; border: none; width: 36px; height: 36px; border-radius: 50%; font-size: 18px; color: #64748b; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: 0.2s; }
.modal-close-btn:hover { background: #fee2e2; color: #ef4444; transform: rotate(90deg); }
.test-iframe { width: 100%; height: 100%; border: none; flex: 1; background: #ffffff; }